CN101255522B - Material for aluminumbronze surface laser cladding and laser cladding method - Google Patents
Material for aluminumbronze surface laser cladding and laser cladding method Download PDFInfo
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- CN101255522B CN101255522B CN2007103065436A CN200710306543A CN101255522B CN 101255522 B CN101255522 B CN 101255522B CN 2007103065436 A CN2007103065436 A CN 2007103065436A CN 200710306543 A CN200710306543 A CN 200710306543A CN 101255522 B CN101255522 B CN 101255522B
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Abstract
The invention relates to a material for laser cladding of an albronze surface and a laser cladding method. The material is composed of 25% to 35% by weight of Cu, 11.5% to 14.5% by weight of Cr, 2.0%to 3.0% by weight of Zr, 2.5% to 3.5% by weight of B, 2.5% to 3.0% by weight of Si, 5.5% to 6.5% by weight of Fe, and the balance Ni, the above materials are 100 to 300 mesh powder; the method comprises the following steps: preparing the materials in the above proportions, uniformly mixing the prepared materials, weighting the alloy powder in 0.02g to 0.08g per square millimeter according to the area of the laser cladding, presetting the alloy powder on the albronze surface by acrylics, compacting after vacuum drying (40 DEG C to 70 DEG C), scanning the preset layer by gradually reducing laserpower with a speed of 6 to 8 millimeters per second and a spot diameter of 4 millimeters.
Description
Technical field
The present invention relates to metal surface treatment technology.
Background technology
Laser is the new light sources of finding the sixties in last century, has characteristics such as energy height, optically focused are good.Laser melting and coating technique just is being based on above characteristics and the process for modifying surface of a kind of novelty of developing.In recent years along with the appearance of high power laser machine, laser melting and coating technique also receives increasing concern, but mainly concentrate on the matrixes such as ferrous metal and aluminium alloy, titanium alloy, on copper alloy laser melting coating still seldom, laser melting coating does not also find on xantal, but performances such as the frictional behaviour that McGill metals is good, corrosion-resistant, easy plastic working cause its application in modern industry also more and more widely.As be widely used in the wearing piece of working under machinery, aircraft and automobile industry, boats and ships and ocean industry, household electrical appliances, metallurgy, mining, petrochemical industry, railway and the condition of high ground stress such as locomotive engineering and building industry.But along with industrial development, traditional McGill metals can not satisfy the requirement of using in the part industry, to the demands for higher performance of xantal material.In order further to enlarge the range of application of McGill metals, just must further improve its intensity and wear resistance.
Summary of the invention
The purpose of this invention is to provide a kind of material and laser cladding method that is used for the xantal surface laser cladding.
The present invention is a kind of material and laser cladding method that is used for the xantal surface laser cladding, measuring its composition by weight percentage is: Cu 25.0～35.0%, Cr 11.5～14.5%, Zr 2.0～3.0%, B 2.5～3.5%, and Si 2.5～3.0%, and Fe 5.5～6.5%, surplus is Ni, and above material is 100～300 purpose powder.
Laser cladding method of the present invention, prepare burden by above-described alloying constituent, after the starting material that prepare are mixed, area according to laser melting coating, take by weighing powdered alloy with every square millimeter of 0.02g～0.08g, with acrylic resin powdered alloy is preset at the xantal surface, treat the compacting of vacuum-drying (40 ℃～70 ℃) back employing pressing machine, adopt laser beam to scan, adopt the mode that reduces laser power gradually that initialization layer is scanned during laser melting coating, laser power is arranged on 3800～4000W when beginning to scan, 20～the 40W of per second reduction later on reaches 2000W up to laser power, continue cladding with 2000W later on, sweep velocity is 6～8 mm/second, and spot diameter is 4 millimeters.
Beneficial effect of the present invention is: the Ni in its composition, Cu are that elements such as the fundamental element of material and Cr, Fe, Zr form the sosoloid that contains elements such as Ni and Cu, improve the over-all properties of material; Cr can solid solution play strengthening effect in Cu, and significantly improves the mechanical property of material, and the rich Cr phase hardness in the cladding layer is higher, and the effect of dispersion-strengthened is arranged.Laser melting coating is to adopt the technology be similar to welding with cladding layer and matrix bond together, so cladding layer and matrix can reach metallurgical binding.Laser cladding layer is by Ni, (Ni, Cu) sosoloid, CrB, Cr
7C
3, Cr
2C
3Deng composition.The sublayer of cladding layer and middle part speed of cooling are relatively slow, so the Crization thing occurs with reticulation.And a lot of near xantal matrix position impurity element, the temperature of xantal matrix is low in addition, causes that this regional condensate depression is very big, causes nucleation rate very big, crystal also has little time to solidify before forming reticulation and finishes, so be tiny acicular structure at this regional Crization thing.This shows that the tissue of the laser cladding layer netted or acicular Crization thing that mainly distributing on the sosoloid by Ni and Ni is formed.Laser cladding layer tissue's even compact, the intact back of disposable cladding cladding layer thickness is 0.5～2mm, hardness is 400～500HV
0.2Under metal to-metal contact and lubrication friction condition, the friction and wear behavior of the sample after the modification of process laser melting and coating technique all is improved.
Embodiment
The material that is used for the xantal surface laser cladding of the present invention, measuring its composition by weight percentage is: Cu 25.0～35.0%, Cr 11.5～14.5%, Zr 2.0～3.0%, B 2.5～3.5%, and Si 2.5～3.0%, and Fe 5.5～6.5%, surplus is Ni, and above material is 100～300 purpose powder.
The xantal surface laser cladding method that is used for of the present invention after preparing burden by the above alloying constituent, is put into ball grinder with the powdered alloy for preparing, and mixes in ball mill 1～2 hour.Area according to laser melting coating; take by weighing powdered alloy after mixing with every square millimeter of 0.02g～0.08g; with acrylic resin powdered alloy is preset at the xantal surface, treats vacuum-drying (40 ℃～70 ℃) after 30～60 minutes, adopt the pressing machine compacting; adopt laser beam scanning at last; adopt during laser melting coating to reduce laser power gradually initialization layer is scanned, whole process adopts nitrogen protection, and airshed is 6L/s; the multiple tracks cladding is adopted in cladding, and amount of lap is 50%.The laser melting coating parameter is: laser power has just begun 3800～4000W, and later per second reduces by 20～40W up to being 2000W, continues cladding, sweep velocity 6～8mm/s, spot diameter 4mm with 2000W later on.Behind the laser melting coating reparation that mechanical workout is prepared into wear-resisting accessory or finishes spare and accessory parts is carried out on the surface.
Claims (2)
1. the material that is used for the xantal surface laser cladding, it is characterized in that measuring by weight percentage its composition is: Cu 25.0～35.0%, Cr 11.5～14.5%, Zr 2.0～3.0%, B 2.5～3.5%, and Si 2.5～3.0%, and Fe 5.5～6.5%, surplus is Ni, and above material is 100～300 purpose powder.
2. xantal surface laser cladding method, prepare burden by the described alloying constituent of claim 1, after the starting material that prepare are mixed, it is characterized in that area according to laser melting coating, take by weighing powdered alloy with every square millimeter of 0.02g～0.08g, with acrylic resin powdered alloy is preset at the xantal surface, the pressing machine compacting is adopted in dry back in 40 ℃～70 ℃ vacuum, adopt laser beam to scan, adopt the mode that reduces laser power gradually that initialization layer is scanned during laser melting coating, laser power is arranged on 3800～4000W when beginning to scan, 20～the 40W of per second reduction later on reaches 2000W up to laser power, continue cladding with 2000W later on, sweep velocity is 6～8 mm/second, and spot diameter is 4 millimeters; Whole cladding process adopts nitrogen protection, and airshed is 6L/s, and the multiple tracks cladding is adopted in cladding, and amount of lap is 50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007103065436A CN101255522B (en) | 2007-12-26 | 2007-12-26 | Material for aluminumbronze surface laser cladding and laser cladding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007103065436A CN101255522B (en) | 2007-12-26 | 2007-12-26 | Material for aluminumbronze surface laser cladding and laser cladding method |
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| Publication Number | Publication Date |
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| CN101255522A CN101255522A (en) | 2008-09-03 |
| CN101255522B true CN101255522B (en) | 2010-06-02 |
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| CN2007103065436A Expired - Fee Related CN101255522B (en) | 2007-12-26 | 2007-12-26 | Material for aluminumbronze surface laser cladding and laser cladding method |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041503B (en) * | 2009-12-29 | 2012-11-14 | 华中科技大学 | Laser-cladded composite wear-resisting layer on surfaces of copper and copper alloys and preparation method |
| CN101805903B (en) * | 2010-04-12 | 2012-07-25 | 太原理工大学 | Method for cladding copper alloy layer on surface of steel substrate by laser brazing |
| CN102537157A (en) * | 2012-02-29 | 2012-07-04 | 上海工程技术大学 | Material for preparing bullet train brake pad and preparing method thereof |
| CN102660738A (en) * | 2012-05-17 | 2012-09-12 | 华东交通大学 | Preparation method of laser irradiation in-situ self-generated Al-Fe-Si ternary ceramic/Fe composite coating |
| CN105154877B (en) * | 2015-11-04 | 2018-03-02 | 河北瑞驰伟业科技有限公司 | Copper matrix surface laser melting and coating process |
| CN105734558A (en) * | 2016-02-29 | 2016-07-06 | 苏州莱特复合材料有限公司 | Aluminum bronze-based composite ceramic coating material and preparation method thereof |
| CN105670433B (en) * | 2016-04-15 | 2017-12-15 | 西迪技术股份有限公司 | A kind of surface cladding technology preset coating and its application |
| CN106148941B (en) * | 2016-08-04 | 2019-01-04 | 苏州优浦精密铸造有限公司 | A kind of preparation process of high-strength close aluminium ingot |
| CN109693027B (en) * | 2018-12-28 | 2021-05-28 | 常熟市金诺精工模具有限公司 | Method for spray welding nickel-based alloy in inner cavity of cast iron glass mold |
| CN110405407A (en) * | 2019-08-13 | 2019-11-05 | 黄山学院 | A kind of novel restorative procedure of mold and device |
| CN111112602A (en) * | 2019-12-26 | 2020-05-08 | 华侨大学 | Aluminum oxide-carbon composite coated copper powder, preparation method and application |
| CN114855160B (en) * | 2022-04-19 | 2023-07-21 | 南京辉锐光电科技有限公司 | Workpiece cladding method, terminal equipment and workpiece cladding system |
| CN115613028A (en) * | 2022-07-06 | 2023-01-17 | 北京机科国创轻量化科学研究院有限公司 | Laser cladding alloy powder based on aluminum bronze alloy surface and laser cladding method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1056903A (en) * | 1990-05-31 | 1991-12-11 | 中国科学院金属腐蚀与防护研究所 | The laser melting coating of air valve and device thereof |
| CN1896452A (en) * | 2005-07-13 | 2007-01-17 | 北京安东奥尔工程技术有限责任公司 | Two-way protecting beam-pumping unit connected hoop |
-
2007
- 2007-12-26 CN CN2007103065436A patent/CN101255522B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1056903A (en) * | 1990-05-31 | 1991-12-11 | 中国科学院金属腐蚀与防护研究所 | The laser melting coating of air valve and device thereof |
| CN1896452A (en) * | 2005-07-13 | 2007-01-17 | 北京安东奥尔工程技术有限责任公司 | Two-way protecting beam-pumping unit connected hoop |
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| CN101255522A (en) | 2008-09-03 |
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